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Finding the Fourth Proportional to 253,978.93, 350,502 and 151,984.99

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Solution

The fourth proportional to 253,978.93, 350,502 and 151,984.99 is: 209,745.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,978.93 : 350,502 = 151,984.99 : x
  2. Step 2: Convert to fraction form
    253,978.93/350,502 = 151,984.99/x
  3. Step 3: Cross multiply
    253,978.93x = 350,502 × 151,984.99
  4. Step 4: Simplify right side
    253,978.93x = 53,271,042,088.73
  5. Step 5: Solve for x
    x = 53,271,042,088.73/253,978.93
  6. Step 6: Final answer
    x = 209,745.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.